Windows 7: Sticky Keys Sound Happening Without Having it Enabled?

Hey guys, I am hoping someone can give me some advice about what I should do here. Some of my questions aren't totally related to hardware but I don't want to create multiple threads.

To keep it brief, I bought a laptop about on September 23'rd, it's a Hp Envy Sleekbook 1040-ca (click here to see - Purchased on sale for $500).

Now two days short of my 14-day return period I heard some clicking noises happening every 5-8 seconds. I did not want to take any chances so I asked for an exchange and told them HP are willing to take it in but I need it for school. I got an exchange from futureshop.



------- Two weeks are up - cannot return anymore.

I get my new laptop and I found that some keys on the keyboard are faulty. Some keys feel that when you press them on a certain side, they make a popping sound like someone spilled soda. I spoke with HP and they said I can send it in for a new keyboard. I said fine, but I'll need to do this in December because I need the computer for university and work. They said come back when you want to do it then.

Fine, I was satisfied until last week where at random times, the computer will make random sticky key beeps (when you press the shift key 5 times). This is happening when I am not using the computer at all or sometimes when I caught myself pressing some of the numbers on the keyboard.

I was wondering if anyone would know why these noises are happening? I am 100% sure it's not sticky keys itself. It could probably be from the hard drive.

I was wondering if I can get some advice on what I should do and what I should say to HP support when I have time to hand it in to them. Should I ask for a whole new unit?

Edit: As I was typing my second last paragraph the computer made the sound again. I checked my sticky key and other keyboard settings and their all OFF. I turned them on and figured that the sounds come out of the headphones I had plugged in. When the sound happened when I was typing, It was not from the headphones but from the left side of the computer.

Any help is appreciated